Fixed temporary arrays being cleared when flushing the keyboard buffer (#337)

Added a message about failed initialization of the game and exit if an error occurs.

sfall/InputFuncs.cpp

@@ -104,7 +104,6 @@ Delegate<>& OnInputLoop() {
 }
 
 void FlushInputBuffer() {
-	while (!bufferedPresses.empty()) bufferedPresses.pop();
 	__asm call fo::funcoffs::kb_clear_;
 }
 
@@ -267,17 +266,25 @@ public:
 		return 0;
 	}
 
-	// Only called for the keyboard (dxinput_read_keyboard_buffer_ called at 0x4E06AB)
+	/* Only called for the keyboard
+		0x4E06AB dxinput_read_keyboard_buffer_
+		0x4E0631 dxinput_flush_keyboard_buffer_
+	*/
 	HRESULT __stdcall GetDeviceData(DWORD a, DIDEVICEOBJECTDATA* buf, DWORD* count, DWORD d) { // buf - DirectInputKeyboardBuffer (0x6B2560)
 		if (DeviceType != kDeviceType_KEYBOARD) {
 			return RealDevice->GetDeviceData(a, buf, count, d);
 		}
+		if (!buf && !d && *count == INFINITE) { // flush
+			while (!bufferedPresses.empty()) bufferedPresses.pop();
+			return RealDevice->GetDeviceData(a, buf, count, d);
+		}
 
 		onInputLoop.invoke();
 
 		if (!buf || bufferedPresses.empty() || (d & DIGDD_PEEK)) {
 			HRESULT hr = RealDevice->GetDeviceData(a, buf, count, d);
 			if (FAILED(hr) || !buf || !(*count)) return hr;
+
 			for (DWORD i = 0; i < *count; i++) {
 				DWORD dxKey = buf[i].dwOfs;
 				DWORD state = buf[i].dwData & 0x80;

sfall/Modules/Graphics.cpp

@@ -202,7 +202,7 @@ const float* Graphics::rcpresGet() {
 static void GetDisplayMode(D3DDISPLAYMODE &ddm) {
 	ZeroMemory(&ddm, sizeof(ddm));
 	d3d9->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &ddm);
-	dlog_f("\nDisplay mode format id: %d", DL_INIT, ddm.Format);
+	dlog_f("Display mode format id: %d\n", DL_INIT, ddm.Format);
 }
 
 static void ResetDevice(bool createNew) {

sfall/Modules/LoadGameHook.cpp

@@ -339,7 +339,13 @@ static void __stdcall game_init_hook() {
 	onGameInit.invoke();
 }
 
-static void __stdcall GameInitialized() {
+static void __stdcall GameInitialized(int initResult) {
+	#ifdef NDEBUG
+	if (!initResult) {
+		MessageBoxA(0, "Game initialization failed!", "Error", MB_TASKMODAL | MB_ICONERROR);
+		return;
+	}
+	#endif
 	onAfterGameInit.invoke();
 }
 
@@ -358,6 +364,7 @@ static void __declspec(naked) main_init_system_hook() {
 		popadc;
 		call fo::funcoffs::main_init_system_;
 		pushadc;
+		push eax;
 		call GameInitialized;
 		popadc;
 		retn;